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Countries like Chile still dump toxic mine waste in the sea. Can they .Mar 28, 2018 . Loading a truck at a copper mine in Chile. The waste from the mining process becomes tailings. Credit: Fotocrisis/ Shutterstock.mining process in chile,Chile mulls revision to mining code | MININGApr 10, 2018 . (Image courtesy of Chile's Ministry of Mines via Flickr.) . Chile is in the process of setting a Presidential Advisory Commission, which will come.